Cometic GasketSKU: T14-CGSC14144-040
Cometic Toyota B58/B58H .040in 83mm Bore MLX Head Gasket
$180.99 Available
Ships from the brand or distributor, usually in 3–7 business days
Make sure this fits your car
Fits: BMW M340i (G20), M440i (G22/G23/G26), M240i (G42), Z4 M40i (G29), 540i (G30, 2020+), X3 M40i (G01, 2020+); Toyota GR Supra 3.0 (A90/A91) (B58). Confirm your exact model before ordering.
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- Free US shipping over $250
- 30-day returns on unused parts
- Fitment help before you buy
Cometic Toyota B58/B58H .040in 83mm Bore MLX Head Gasket
Brand: Cometic Gasket · Part #: C14144-040
Ships from the brand or distributor, usually in 3-7 business days.
BMW M340i (G20), M440i (G22/G23/G26), M240i (G42), Z4 M40i (G29), 540i (G30, 2020+), X3 M40i (G01, 2020+); Toyota GR Supra 3.0 (A90/A91) (B58). Confirm your exact model before ordering.
| Model | Chassis | Years | Engine | Fits |
|---|---|---|---|---|
| M140i | F20/F21 | 2016–2019 | Gen 1 B58 | |
| M240i | F22/F23 | 2016–2021 | Gen 1 B58 | |
| 340i | F30/F31/F34 | 2016–2019 | Gen 1 B58 | |
| 440i | F32/F33/F36 | 2017–2020 | Gen 1 B58 | |
| 540i | G30/G31 | 2017–2019 | Gen 1 B58 | |
| 740i | G11/G12 | 2016–2019 | Gen 1 B58 | |
| X3 M40i | G01 | 2018–2019 | Gen 1 B58 | |
| M340i | G20/G21 | 2019+ | Gen 2 B58 (TU) | |
| M440i | G22/G23/G26 | 2021+ | Gen 2 B58 (TU) | |
| M240i | G42 | 2022+ | Gen 2 B58 (TU) | |
| Z4 M40i | G29 | 2019+ | Gen 2 B58 (TU) | |
| GR Supra 3.0 | A90/A91 | 2020+ | Gen 2 B58 (TU) | |
| 540i | G30/G31 | 2020–2023 | Gen 2 B58 (TU) | |
| 740i | G11/G12 | 2020–2022 | Gen 2 B58 (TU) | |
| X3 M40i | G01 | 2020+ | Gen 2 B58 (TU) |
Not sure? Email sales@b58racing.com with your VIN.
- Orders ship from Dallas, TX in 1–2 business days.
- Free US shipping on orders over $250.
- Unused parts can be returned within 30 days. Some items are marked no-refund in their description.
Full details are on our shipping and returns page.
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